| 摘要 |
PURPOSE:To provide a method for producing a porous crystallized glass having high mechanical strength and being integrated with a bioorganization in a short time. CONSTITUTION:At first, a slurry is prepd. by mixing 30% ethanol and 3% polyvinyl butyral(PVB) to 100wt.% glass powder having a compsn. of 22-50% SiO2, 8-30% P2O5, 20-53% CaO, 1-16% MgO, 0.1-2% F2, 0-9% Al2O3, and 0-5% B2O3. Then, after a urethane foam is impregnated with the slurry and is dried, it is heat-treated to remove the urethane foam and PVB by burning and to sinter and crystallize the glass powder. |
